PPRuNe Forums - View Single Post - 747-200F down in Bogota ?
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Old 9th July 2008 | 23:02
  #117 (permalink)  
bpp
 
Joined: Mar 2001
Posts: 57
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From: San Diego, CA., USA
Glueball
My statement did not imply the aircraft was runway limited. I merely stated that taking off from high altitude airports the max certified takeoff weight is not a player. Almost everytime I've departed Bogota the aircraft was climb weight limited. Understanding the relationship between your actual takeoff weight and the climb limit weight will give a good idea of what to expect in aircraft performance. Your statement assumes the aircraft is clean and at it's 3 eng enroute climb speed. Did you forget that he has to climb to his level off height, lower his nose to accelerate, clean the aircraft up, continue the climb while securing the engine (if it was still operating), trim the rudder for direction control and accomplishing the appropriate checklists? And do it within 1,600' agl (10,000' msl). He may never have reached his engine out acceleration height due to terrain and may not have changed the configuration of the aircraft other than gear up. What does 10,000' and maximium gross weight have to do with anything?

Regards,
bpp

Last edited by bpp; 9th July 2008 at 23:19.
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